Lock for sliding doors



' (No Model.) 2 Sheets-Sheet 1.

W. T. MINGUS.

LOCK FOR 'sLImNe DOORS.

No. 275,066. Patented A pr.3,1883

AEV/l/ W \\\\Y attest I Invent?? M0 20mm; by WQ), wa

(No Model.)

2 Sheets-Sheet 2. W. T. MINGUS. LOGK FOR SLIDING DOORS.

Patented Apr. 3, 1883.

UNITED STATES PATENT OFFICE.

VILLIAM T. MINGUS, OF NEWARK, NEIV JERSEY.

LOCK FOR SLIDING DOORS.

SPECIFICATION forming part of Letters Patent No. 275,066, dated April 3,1883.

7 Application filed December 8, 1882. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM T. MINGUS, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Locks; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

The object of this inventionis to give greater security to a freightcar,to give increased strength to a lock, to facilitate the locking andunlocking of the same, and to attain other advantages, as will behereinafter set forth.

The invention consists in the arrangements and combinations ofparts,substantially as will be hereinafter set forth, and finally embodied inthe claims.

Referringto the accompanying drawings, embraced in two sheets, in whichsimilar letters of reference indicate like parts in each of the severalfigures, Figure 1 is an elevation of a freight-car door to which myimproved lock has been applied; Fig. 2, a sectional View of the-same,taken through line as. Fig. 3, Sheet 2, represents a modified form of myinvention, and Fig. 4 is a section thereof.

In carrying out the invention I form a lockplate, a, adapted to besecured to the car-body b by means of abolt or screw, arranged so thatthe screw-head or bolt-nut shall lie beneath and be covered by thelock-hasp 0, thereby cutting off access to them when the hasp is locked.Said lock -plate moves pivotally on said bolt or screw, so that shouldthe car or gate sag the hasp d may still be readily secured between thehereinafter-mentioned portions a. Said lock-plate a has formed on theouter face thereof projecting portions, a a, between which the door orgate hasp d lies, said projections acting as guards. Upon the lock-platea is secured the lock-hasp 0, upon the under side of which is formed thepin 6. Said lock-hasp 0 covers the door-hasp and secures the same to orin the look, as shown. The door-hasp d is secured to the sliding door fby suitable means, and is provided with a series of perforations, 9,formed and adapted to engage with the pin on the lock-hasp, so thatunder certain circumstances, when it is'incondoor f, the latter can besecured, yet remain partially open. The extremity n of the hasp d isturned or bent or has a projection formed upon it, so that should saidhasp-pin e be broken or be otherwise ineffective further preventiveagainst withdrawal of hasp d is furnished.

The lock-hasp a may be secured by a padlock, m, or by other suitablemeans-such, for example, as a lock and key, as indicated in Figs. 3 and4.

Thelock thus constructed is of great strength and utility, moreespecially as applied to freight-cars, and can be manufactured at areduced cost. Its simplicity of construction prevents the same fromgetting readily out of order, and it is otherwise adapted for thepurposes for which it is intended, making it an improved article ofmanufacture.

It is evident that the locking device may be changed from the body b tothe doorf, the other parts being relatively changed, without departingfrom the spirit of my invention, and therefore I do not wish to limitmyself to the exact construction herein shown, as these and otherchanges may be made.

I am aware that hasps have been so formed heretofore as that car-doorsmay be fastened when the same are but partially closed, and thereforethis feature, broadly, I do not wish to be understood as claiming; but

What I claim as new is' 1. In combination with a hasp, d, a lockit tosaid hasp, and carrying a hasp, c, and means for locking the latter, asset forth.

2. In combination, the plate a, with the hasp c and means whereby saidhasp is locked arranged thereon, said plate being adapted to 'be securedto the-body'b at a point beneath the hasp 0 when the latter is in alocked condition, and the hasp d, all said parts being arranged andoperating substantially as herein set forth and shown.

3. In combination, the pivotal lock-plate a, hasp 0, pin 6, and meansfor locking said hasp venient or impossible to entirely close said.

plate having a pivotal action to accommodate 0, and the perforated haspg, all arranged and In testimony that I claim the foregoing I 10operating substantially as herein set forth and have hereunto set myhand this 20th day of shown. November, 1882.

4. In combination, the pivotal look-plate a, hasp 0, pin 0, and meansfor locking said has'p WILLIAM T. MINGUS. 0, and the hasp d, having aseries of perforations, g, and projection n therein and thereon,itnesses: all said parts being arranged and operating OLIVER DRAKE,substantially as herein set forth and shown. CHARLES H. PELL.

